Abus uses 4.5 gallons of gasoline to travel 75 miles. how many gallons would the bus use to travel 90 miles?

If you are just building your payment history, how many points from a perfect score will you possibly miss?

How is working backward similar to solving an equation?

Awater holding tank measures 105 m long, 50 m wide, and 8 m deep. traces of mercury have been found in the tank, with a concen- tration of 60 mg/l. what is the total mass of mercury in the tank? answer in units of kg.